Wrench



March 11 1924.

K. J. KRUKOWSKI WRENCH Filed June 2,

R mm mm m m wzkm 1a r A M Q .w. my LB Patented lt iamli, 192

KAZIMIERZ J. KRUKOVT SKI, OF WEST HAMMOND, ILLINOIS.

WRENCH.

Application filed. June 2, 1922.

To all whom it may concern:

Be it known that I, Knzmmmz J. Knu- KOWSKI, a citizen of the UnitedStates, residing at Vest Hammond, county of Cook, and State of Illinois,have invented. certain new and useful Improvements in \Vrenches, ofwhich the following is a specification.

This invention relates to improvements in wrenches, and has for itsprincipal object to provide a wrench having means for holding thesliding jaw and for allowing a ready and instantaneous release of thisholding means in order to adjust the wrench to the varying sizes of workpieces.

A further object of the invention is the provision of a wrench of anovel and extremely simple and inexpensive construction which has allthe advantages of an adjustable wrench, and embodies also the featuresof a quick moving jaw wrench.

With these ends in view, this invention consists in the details ofconstruction and combination of elements hereinafter set forth and thenSpecifically designated by the claim.

In the accompanying drawing, forming a material part of this disclosure,a preferred form of my invention is illustrated, and in this drawingFigure 1 is a side elevation ofa wrench constructed according to thepresent inven-- adapted to be secured to the handle extension 12 byscrews 14:.

The body 11 has near its lower end a rectangular recess 16, open at thefront and in this recess a vertically disposed worm 17 is located inengagement with the teeth of a rack 18 on the lower end of the shank 13of Serial No. 565,369.

movable jaw 10. Through this worm 17 the pin 19 of an operating member20 is guided, the upper end of which extends into a suitable socket inbody 11 above recess 16.

The member 20 has an angular slot 21 in its side faces in which a pin 22of body 11 travels, and the outer end of the member 20 is formed with ashoulder 23 from which a pm 24: projects, and with a corrugated grip oThe handle 12 is also formed with an inner shoulder 26 provided with asocket for the reception of a spring 27, with which the pin 24: engageswhen the parts are in the position illustrated in Figure .1.

The device operates as follows:

When it is desired to quickly adjust the wrench to a work piece, themember 20 is pulled down so that its end or pin 19 becomes disengagedfrom the body 11, and allows a disengagement of worm 17 from rack 18, sothat now the movable jaw 10 can be adjusted in its relative positionwith respect to jaw 10, whereafter the pin 19 is again brought intoengagement with the socket in body 11. During this manipulation the pin22 of body 11 will be guided within the angular slot 21 of member 20 tolimit and guide the movements of the movable jaw.

As indicated in dotted lines in Figure 1, the jaws may be square instead-of rounded.

Having thus described my invention, what I claim as new, and desire tosecure by Let ters Patent of the United States is A wrench, comprising afixed aw and a movable jaw, said fixed jaw having a handle extension andsaid movable jaw having an extension slidably fitted within said handleextension, said fixed jaw being formed with a rectangular recess toexpose a rack formed on the extension of the movable jaw, a wormarranged in said recess to cooperate with the teeth of said rack, a pinrotatably supporting said worm, said pin being extended in part beyondthe fixed jaw and formed to provide a handle, to permit endwise movement of said pin at will, a spring arranged between said handle andfixed jaw to move the handle and thereby the pin in one direction, saidpin being formed with an angudisconnect the Worm and rack to permitquick adjustment of the movable jaw relative to the fixed jaw. 10

In testimony whereof I have atlixed my signature.

KAZIMIERZ J; KRUKOWSKI.

